E-Power D5555GS 55KG Waterproof Steel Gear Digital Servo

A high-torque, standard-size digital servo with a brushless motor, steel gear train and aluminium case, built for heavy steering linkages, robot joints, boats and drone payload or release mechanisms. It comes in three control-angle versions, 180°, 270° and 360°, so you can match the servo's travel to the mechanism.

Key features

• Stall torque of 43 kg·cm at 6 V, rising to 58 kg·cm at 8.4 V
• Brushless motor with MOS drive and a magnetic-encoder position sensor for precise, low-jitter holding
• Steel gears on dual ball bearings in a CNC aluminium case that also helps dissipate heat
• Standard PWM control with a 1500 µs centre and 1 µs dead band, so it works with any RC receiver or servo tester
• Runs directly from a 2S LiPo or a 6–8.4 V BEC

Specifications

• Operating voltage: 6.0–8.4 V
• Stall torque: 43 kg·cm @ 6 V, 52 kg·cm @ 7.4 V, 58 kg·cm @ 8.4 V
• Speed: 0.13 s/60° @ 6 V, 0.10 s/60° @ 7.4 V, 0.08 s/60° @ 8.4 V
• Idle current: 300 mA @ 6 V, 320 mA @ 7.4 V, 350 mA @ 8.4 V
• Control: PWM, 1500 µs centre, 500–2500 µs pulse range
• Dead band: 1 µs
• Bearings: 2 ball bearings
• Control angle: 180°, 270° or 360° (by variant)
• Cycle life: over 600,000 cycles (no load)
• Dimensions: 40 × 20 × 40.5 mm
• Weight: 81 g (without horn)
• Operating temperature: -20 °C to +60 °C

The 6.0 V minimum rules out a 5 V receiver or flight-controller rail: feed it from a dedicated high-current BEC or a 2S pack, because a servo this strong draws several amps when it stalls. For the 360° version, confirm whether your project needs positional control or continuous rotation before ordering.